I was looking for a good program to help me edit my BIOS software to add a command line tool when I came across UEFI that seems to have a cool GUI and a lot of tools,
I also noted that the sights wiki implied the idea that it could be implemented on an OS or implemented on top of a traditional BIOS.

I would like to know how it might implement on top of a traditional BIOS,
How douse it run,
And is the idea that the BIOS jest has a new look and operates more tools/functions?

I also would like to know where to get it,
And if it to can be edited?